Interlocking structure for floor panel

ABSTRACT

This utility model is a new interlocking structure for floor panel. The new interlocking structure for floor panel in accordance with the invention comprising floor panels; one panel edge having an upwardly curved flange, having at least one tooth, formed at it end and at least one hump and depression along its one top surface; the adjacent panel has a generally correspondingly shaped recess to receive the flange, the sectional configuration of tooth is trapezia. The floor panel made in this way, just because there is the interlocked gear shaped tongue on the vertical section of the tongue and groove connection. This interlocking increased the bearing capacity of floor panel from vertical acting force. And the abutting joint of panels is also improved obviously. It is useful and helpful to processing panel in vertical direction and laying precision of panel, as well as preventing the breakage of joint and distortion of floor panel.

FIELD OF THE INVENTION

This utility model relates to a interlocking structure for floor panel,especially it relates to a new tongue and groove structure for floorpanel.

BACKGROUND OF THE INVENTION

The fortified wooden floor is the new developed building materials inrecent years. Compare with the solid wood floor, it is concerned withand shows broad useful prospect just because it has the characters ofhigh quality and inexpensive, steady and durable, simple process oflaying, low cost of construction and dismountable. The fortified floordepends on connected panel pieces with the tongue and groove on alledges. Moreover, it is laid on the floor directly, not set the keel. So,the shape and structure of the interlocking structure is very importantto the floorboard connection and the quality of the laying. Theinterlocking structure consists of the tongue and grove. Furthermore,the section configuration of the tongue and grove should becorresponding and occlusive. That means one panel with his tongue cansuccessfully inserted into the groove of the adjoining panel to realizethe connection. Now there are several known interlocking structures arein use. For example, the flat rabbet which is inserted to groovedirectly, characterized in that the structure is simple, and the jointeasily to break away or open. There is another type of rabbet made ofcurve and broken lines. Although there are interlocked tongue and grooveon the both connection edges of adjoining panels to prevent the floorpanel from breaking away. But it was found in service use that the jointstill would be sink or open when there is stronger acting force on thefloorboard.

DESCRIPTION OF THE INVENTION

The object of this utility model is to overcome the shortcomings of theinterlocking structure mentioned above, and provide with a newinterlocking structure for floor panel. The new interlocking structurefor floor panel in accordance with the invention comprising floorpanels; one panel edge having an upwardly curved flange, having at leastone tooth, formed at it end and at least one hump and depression alongits one top surface; the adjacent panel has a generally correspondinglyshaped recess to receive the flange. The sectional configuration oftooth is trapezia. The sectional configuration of hump is arc or coneform.

A new interlocking structure for floor panel according to one embodimentof the invention, characterized in that said flange having two tooth,formed at it end and two hump and depression along its one top surface.,the adjacent panel has a generally correspondingly shaped recess toreceive the flange.

A new interlocking structure for floor panel according to anotherembodiment of the invention, characterized in that said flange havingtwo tooth and three hump and depression along its one top surface., theadjacent panel has a generally correspondingly shaped recess to receivethe flange.

The floor panel made in this way, just because there is the interlockedgear shaped tooth (tongue) on the vertical section of the tongue andgroove connection. This interlocking increased the bearing capacity offloor panel from vertical acting force. And the abutting joint of panelsis also improved obviously. Secondly, the new construction of tongue andgroove in accordance with the invention benefits the surface area ofpanel without loss when cutting panel, so compare with the prior arthaving surface with loss cutting, it enhanced the utilization factor ofwood or floor material. Furthermore, the design of the interlockingstructure benefits the hand worked laying of floor panel directlywithout tools when two adjoining panels are jointed together. It madethe laying of floor panel simple and saves the man-hour relatively.Besides, this utility model is useful and helpful to processing panel invertical direction and laying precision of panel, as well as preventingthe breakage of joint and distortion of floor panel.

BRIEF DESCRIPTION OF THE DRAWING

The process of the invention is described in more detail below withreference to the accompanying drawings, in which:

FIG. 1 is a schematic drawing of the cross-section of first embodimentof the present application.

FIG. 2 is the schematic drawing of the cross-section of assembly ofpresent application used in first embodiment of FIG. 1.

FIG. 3. is a schematic drawing of the cross-section of the secondembodiment of the present application.

FIG. 4. is a schematic drawing of third embodiment of the presentapplication.

DETAILED DESCRIPTION OF THE REFERENCED EMBODIMENTS

This is the further explanation combine with the accompanying drawingsfor embodiments. As shown in the accompanying drawings, FIG. 1 and FIG.2, the flange 11 and recess 10 are made in the both edges of floor panel1. On the vertical side of flange 11 of floor panel, the tooth (tongue)111 and the groove 110 positioned both sides of the tooth 111, whosesection configuration is trapezia, are made on the suitable place. Onthe other edge of the floor panel, the groove 100 in trapezia form wasmade in recess 10 of floor panel to corresponding with tooth (tongue)111, and the two trapezia shaped tooth 101 to interlock with the trapziashaped groove (tooth space) 110. To ensure the adjoining of the floorpanel are stronger and tighter, the arc shaped hump 112, 113 and thedepression 102, 103 are made on the connecting aspect of the flange 11and recess 10 of floor panel 1 respectively. The hump 112 and depression102, hump 113 and depression 103 are interlocked each other. When twoadjoining panels or floorboards are jointed together, the sectional viewas shown in FIG. 2. When the flange 11 of floor board 1 insert therecess 10 of adjoining floorboard, the tooth 111 and the groove 110positioned on two sides of tooth 111 on the vertical side of flange 11are interlocking with the groove 100 and the tooth 101 positioned on twosides of groove 100 on the vertical side of recess 10. It is similar tothe engagement of the gear and rack.

The second embodiment as shown in FIG. 3 indicates that said flange 11having two tooth, formed at it end and two hump 112, 113 and depressionalong its one top surface, the adjacent panel has a generallycorrespondingly shaped recess 10 to receive the flange 11.

The third embodiment as shown in FIG. 4 indicates that said flange 11having two tooth, formed at it end and three hump 112, 113, 114 anddepression along its one top surface., the adjacent panel has agenerally correspondingly shaped recess 10 to receive the flange 11.

This tooth shaped tongue and groove which interlocked each other, itenhances not only the connection area of the tongue and groove, but alsothe connection area on the horizontal direction. So the bearing capacityof floor panel from the vertical force is increased obviously. At thesame time, just because the connection area is increased, the adjoiningjoints of the floor panel are stronger and tighter. This newinterlocking structure is of great benefit to prevent the floor panelfrom cracking.

1. A new interlocking structure for floor panel comprising floor panels;one panel edge having an upwardly curved flange (11), having at leastone tooth (111), formed at it end and at least one hump (112, 113) anddepression along its one top surface; the adjacent panel has a generallycorrespondingly shaped recess (10) to receive the flange (11).
 2. A newinterlocking structure for floor panel according to claim 1,characterized in that the sectional configuration of tooth (111) istrapezia.
 3. A new interlocking structure for floor panel according toclaim 1, characterized in that the sectional configuration of hump isarc or cone form.
 4. A new interlocking structure for floor panelaccording to claim 1, characterized in that said flange (11) having twotooth, formed at it end and two humps (112, 113) and depression alongits one top surface, the adjacent panel has a generally correspondinglyshaped recess (10) to receive the flange (11).
 5. A new interlockingstructure for floor panel according to claim 1, characterized in thatsaid flange (11) having two tooth and three humps and depression alongits one top surface, the adjacent panel has a generally correspondinglyshaped recess (10) to receive the flange (11)